package com.handler;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.core.annotation.AnnotationUtils;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseStatus;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;

@ControllerAdvice
public class ControllerExceptionHandler {

    private Logger logger= LoggerFactory.getLogger(this.getClass());

    @ExceptionHandler(Exception.class)  /*拦截exception级别的异常*/
    public ModelAndView exceptionHander(HttpServletRequest request,Exception e) throws Exception {
        logger.error("Request URL : {},Exception :{}",request.getRequestURL(),e);
        if(AnnotationUtils.findAnnotation(e.getClass(), ResponseStatus.class)!=null){
            throw e;   /*@ResponseStatus(HttpStatus.NOT_FOUND)判断别的类是否有有专门的异常处理*/
        }
        ModelAndView mv=new ModelAndView();
        mv.addObject("url",request.getRequestURL());
        mv.addObject("exception",e);
        mv.setViewName("error/error");
        return mv;
    }
}
